Tetrasodium diphosphate
Function: Emulsifiers
E450III is the European food-additive number for Tetrasodium diphosphate, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. TETRASODIUM PYROPHOSPHATE, also called sodium pyrophosphate, tetrasodium phosphate or TSPP, is a colorless transparent crystalline chemical compound with the formula Na4P2O7.
What is E450III used for?
Tetrasodium diphosphate (E450III) is an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. It is added during food production for a technological purpose rather than for nutrition. See all Emulsifiers (E-numbers).
Is E450III safe or restricted?
E450III faces restrictions under EU rules on how, where, or in what quantities it may be used. Forkin classifies it as “Restricted use” and does not make health claims. See the methodology for how regulatory levels are assigned, or the guide to how EU additives are approved, re-evaluated and banned.
Is E450III vegan or vegetarian?
Tetrasodium diphosphate (E450III) is typically produced from plant, mineral, or synthetic sources, so it is generally suitable for vegans and vegetarians.
The production source can vary between manufacturers — the Forkin app shows product-specific vegan and vegetarian signals where available, based on ingredient and label data. Always read the label for allergens.
Which foods contain E450III?
E450III appears in 2,522 of the 4.9 million products in Forkin's catalogue — most often in Marshmallow, Cakes, and Pudding / Flan.
- Marshmallow322
- Cakes175
- Pudding / Flan114
- Desserts & Puddings95
- Sausages95
- Dessert Mixes90
- Surimi / Crab Sticks86
- Pastry81
Often appears alongside
Additives most frequently found in the same ingredient lists as E450III across the catalogue.
Counts reflect Forkin's independently enriched product catalogue and update as new products are added — they are not a market-share statistic.
Frequently asked questions about E450III
- What is E450III?
- E450III is the E-number for Tetrasodium diphosphate, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. TETRASODIUM PYROPHOSPHATE, also called sodium pyrophosphate, tetrasodium phosphate or TSPP, is a colorless transparent crystalline chemical compound with the formula Na4P2O7.
- What is E450III used for?
- Tetrasodium diphosphate (E450III) is an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Manufacturers add it during processing rather than for nutrition. The Forkin app shows which products in your scan history actually contain it.
- Which foods contain E450III?
- E450III appears in 2,522 of the 4.9 million products in Forkin's catalogue — most often in Marshmallow, Cakes, and Pudding / Flan. Scan any barcode with the Forkin app to see instantly whether a specific product contains it.
- Is E450III vegan or vegetarian?
- Tetrasodium diphosphate (E450III) is typically produced from plant, mineral, or synthetic sources, so it is generally suitable for vegans and vegetarians. The Forkin app shows product-specific vegan and vegetarian signals where available, based on ingredient and label data, since the source can vary between manufacturers.
- Is E450III safe, and is it banned anywhere?
- E450III faces restrictions under EU rules on how, where, or in what quantities it may be used. Forkin classifies it as ‘Restricted use’ and does not make health claims — see the methodology page for how regulatory levels are assigned, and the Forkin app for the full profile, including acceptable daily intake (ADI) and restrictions by country.
See the full profile in Forkin
The Forkin app surfaces the full regulatory profile of E450III — acceptable daily intake (ADI), restrictions by country, vegan and vegetarian status, alternative names, and which products in your scan history contain it. See view pricing.